After defeating Sauron it's not over because when they come back to the shire turns out someone's fucking shit up

https://en.wikipedia.org/wiki/The_Scouring_of_the_Shire

Critics have considered "The Scouring of the Shire" the most important chapter in The Lord of the Rings. Tolkien denied that the chapter was an allegory of the state of Britain during the aftermath of World War II. Commentators and critics have however seen it as applicable to that period, with clear contemporary political references. These include a satire of socialism; echoes of Nazism; allusions to the shortages in postwar Britain; and a strand of environmentalism.

The idea of such a chapter was, as Tolkien stated, planned from the outset, as part of the overall formal structure of The Lord of the Rings, though its details were not worked out until much later. The book's central theme is going out on the physical quest to destroy the One Ring, to be balanced by a chapter on returning home on the moral quest to purify the Shire and to take responsibility for oneself.

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